'\" te
.\"  Copyright (c) 2007, Sun Microsystems, Inc.,  All Rights Reserved
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.TH LDI_GET_EVENTCOOKIE 9F "Aug 21, 2007"
.SH NAME
ldi_get_eventcookie \- retrieve NDI event service cookie
.SH SYNOPSIS
.LP
.nf
#include <sys/ddi_obsolete.h>

\fBint\fR \fBldi_get_eventcookie\fR(\fBldi_handle_t\fR \fIlh\fR, \fIchar *name\fR
     \fIddi_eventcookie_t *ecp\fR);
.fi

.SH INTERFACE LEVEL
.sp
.LP
Obsolete
.SH PARAMETERS
.sp
.ne 2
.na
\fB\fIldi_handle_t lh\fR\fR
.ad
.RS 26n
Layered handle.
.RE

.sp
.ne 2
.na
\fB\fIchar *name\fR\fR
.ad
.RS 26n
null-terminated string containing the event name.
.RE

.sp
.ne 2
.na
\fB\fIddi_eventcookie_t *ecp\fR\fR
.ad
.RS 26n
Pointer to the kernel event cookie.
.RE

.SH DESCRIPTION
.sp
.LP
This function is obsolete and is only maintained for compatibility. Use of this
function is strongly discouraged. For equivalent functionality provided by new
interfaces, see \fBldi_ev_get_cookie\fR(9F) and
\fBldi_ev_register_callbacks\fR(9F).
.sp
.LP
The \fBldi_get_eventcookie()\fR function queries the device tree for a cookie
matching the given event name and returns a reference to that cookie. The
search is performed by calling up the device tree hierarchy of the  device
represented by the layered driver handle until the request is satisfied by a
bus nexus driver,  or the top of the dev_info tree is reached.
.sp
.LP
The cookie returned by this function can be used to register a callback handler
with \fBldi_add_event_handler\fR(9F).
.SH RETURN VALUES
.sp
.ne 2
.na
\fB\fBDDI_SUCCESS\fR\fR
.ad
.RS 15n
Cookie handle is returned.
.RE

.sp
.ne 2
.na
\fB\fBDDI_FAILURE\fR\fR
.ad
.RS 15n
Request was not serviceable by any nexus driver in the target device's
ancestral device tree hierarchy.
.RE

.SH CONTEXT
.sp
.LP
This function may be called from user or kernel contexts.
.SH SEE ALSO
.sp
.LP
.BR ldi_add_event_handler (9F),
.BR ldi_ev_get_cookie (9F),
.BR ldi_ev_register_callbacks (9F),
.BR ldi_remove_event_handler (9F)
.sp
.LP
\fIWriting Device Drivers\fR
